HPCC-9034 Use structure array for deleting and send process

Multiple package maps may be deleted in one service request.
The information about one package map contains multiple
items. Structure array is the best option to pass the
information.

For now, we only support '*' as process filter. But, we may use
other process filter in the future. So, it should be sent inside
DeleteProcessMap request.

Signed-off-by: Kevin Wang <kevin.wang@lexisnexis.com>